Why would I be tired of excuses when I haven't even heard any ;) This is perfectly valid, and if you feel like you're too busy and that the club is too inactive for it to be worth it, then it'd be an acceptable reason, whereas if you still had lots of time and just gave up because it was inactive, I'd probably doubt your abilities at club owning in the future. So yeah, it's up to you what happens to the club, though I'm probably gonna close it if any, since I think it'd might get an activity boost if it was new and fresh ;/
Anyways, hope to see you around more, it's felt kinda empty with you :')